12a rotary housing question

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03-02-11 | 10:07 PM

nic_1_2

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From: washington

12a rotary housing question

hey guys

I just tore apart the 12a out of a parts car that i got. My question is. how apparent will it be if a rotor housing is bad? i cant see or feel and grooves or nicks in the crome. can they warp??

thank you

Nic

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03-02-11 | 10:18 PM

KansasCityREPU

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From: KC

Yes, they can warp. The FSM shows where to take the measurement.

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03-02-11 | 10:39 PM

rx71king

the diabolical one

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From: queens n.y.

buy one of these . http://cgi.ebay.com/ebaymotors/Facto...sQ5fLiterature all the info you will ever need

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03-04-11 | 03:40 PM

DriveFast7

Blood, Sweat and Rotors

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From: California

You have to measure the width of the rotor housing. When it gets hot, it'll warp and compress. Which makes it narrower. You compare the width of the top of the housing where it's coolest, to the spark plug area where it's hottest. It can't differ too much. And there's a minimum width spec too.

Plus the usual corrosion and spark plug hole check.

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